FA-83935 / Sports scoring and tiebreakers / Member archive

Badminton game runs past the 30-point cap · case 05

At 29-29 the next rally does not end the game.

Member previewVariant 5 · 3 implementations · 9 checks per implementation

Case contract

One badminton singles game. rallies is a string of rally winners (A/B). A game is won at 21 points with a two-point lead, or by the first player to 30 points (29-29 next point wins). The rally winner serves next. The server serves from the right court when the server's own score is even and from the left court when odd. Return [a, b, winner, None, None] when finished (later rallies ignored) or [a, b, None, next server, "right"/"left"].

Why this case matters

Umpire scoring pads show the service court and server after each rally.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
boundary cap at 30	`[29, 30, null, "B", "right"]`	`[29, 30, "B", null, null]`	Failed

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